conc
Conc is a package to help with concurrent operations in Go. Works with Go1.18 generics.
Map
Map takes a slice and a function, it then calls the function with each value of the slice The return of each function will be values in the returned slice
before := time.Now()
ret, err := conc.Map([]string{"10", "30", "40", "80"}, func(val string) (int, error) {
time.Sleep(time.Second)
return strconv.Atoi(val)
}, conc.WithMaxConcurrency(2))
fmt.Println(ret, err, time.Since(before)) // [10 30 40 80] <nil> 2.006875646s
